Heiden is a village and a municipality in the canton of Appenzell Ausserrhoden in Switzerland.

Its Biedermeier village around the church square is listed as a heritage site of national significance.

[4] Heiden, Lutzenberg, and Wolfhalden originally were parts of a single municipality named the Kurzenberg.

[5] The founder of the Red Cross, Henry Dunant, spent his last years in Heiden.

Of the rest of the land, 16.8% is settled (buildings or roads), and the remainder (0.3%) is non-productive (rivers, glaciersm or mountains).

[6] An hourly rack railway, the S25 service operated by Appenzell Railways for St. Gallen S-Bahn, leads from Heiden to the port of Rorschach (Rorschach Hafen) on Lake Constance, 400 meters (1,300 ft) below.